Aggressive Adenoid Cystic Carcinoma of Maxillary Sinus in a 43-Year-Old Male: Rare Case Report and Review of Literature

Figure 3

(a), (b) Neoplastic cells have a positive reaction pattern for S-100 (immunohistochemical staining, original magnification, ×20 and ×40). (c) Positive reaction pattern for pan-cytokeratin (IHC staining original magnification ×40). (d), (e) Positive reaction pattern for Ki67 (IHC staining, ×20 and ×40). (f) Negative reaction pattern of neoplastic cells for p63 in initial biopsy specimen (IHC staining, ×20). (g), (h), (i) Positive reaction pattern of neoplastic cells for p63 in secondary excised lesion (immunohistochemical staining, ×20 and ×40).

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